| EGEdward Greene & Sons | Susquehanna | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| ESEldorado Stone - Greencastle (antrim Commons) | Greencastle | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| ESEldorado Stone Mfg Plt | Greencastle | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| EIEljer Inc/ford City Plt | Ford City | PA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| EHEp Henry | Parker Ford | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| EMEpic Metals Corp/rankin | Rankin | PA | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| ECEssroc Cement CORP - Plant 3 | Nazareth | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| EMEssroc - Mcquiston Plt | Bessemer | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| FIFalconer-lewistown INC | Lewistown | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| FCFrank Casilio & Sons, INC | Bethlehem | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FCFrank Casilio & Sons, INC | Allentown | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FTFuzion Tech/freeport Brick Div | Freeport | PA | Chemical Manufacturing325194 | — | ◇ UNVERIFIED |
| FTFuzion Tech/kittanning Brick Div | Adrian | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GCGe CO Bridgeville Glass Plant | Bridgeville | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| GSGeneral Shale Brick INC Plant # 39 | Darlington | PA | Nonmetallic Mineral Product Manufacturing327121 | — | ◇ UNVERIFIED |
| GGGlen Gery Bigler Plt | Bigler | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GHGlen-gery Hanley Plt | Summerville | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GGGlen Gery York Brick Plt | York | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GOGlenn O Hawbaker/canton Aggregate Plt 21 | Canton | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| GBGraffius Burial Vault Mfg Plt | Sinking Spring | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| GIGuardian Ind Corp/jefferson Hills | Clairton | PA | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| HKHaines & Kibblehouse/locust Ridge Quarry | Pocono Lake | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Svc/indiana Plt | Homer | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| HCHanna Clnrs/red Lion | Red Lion | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| HRHanson Ready Mix INC | State College | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HWHarbison Walker International-chlorinator | Claysburg | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| HPHarmar Plt | Cheswick | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| HMHarsco Metals - Coatesville | Coatesville | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HMHarsco Metals - Natrona Facility - Gate 10 | Natrona Heights | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HPHeckett Plant #21 | Natrona Heights | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HCHma Concrete LLC Dba Heritage Concrtete Avondale Facility | Avondale | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HRHorgan Recycling Inc/west Point | West Point | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| IDIcmi/nukote Dunbar Plt | Connellsville | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| ICInternational Chimney CORP | Kittanning | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| IMIsp Minerals Charmian Quarry | Blue Ridge Summit | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| JCJ C Howard Concrete Batch Plt | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JSJeannette Specialty Glass | Jeannette | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| JSJeannette Specialty /jeannette Shade & Novelty | Jeannette | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| JSJohnstown Storage | Johnstown | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| JRJ & R Slaw Precast Plant | Lehighton | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JCJuniata College | Huntingdon | PA | Nonmetallic Mineral Product Manufacturing327121 | — | ◇ UNVERIFIED |
| JCJuniata Concrete CO - Mifflintown Plant 2 | Mifflintown | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JCJuniata Concrete CO - Newport Plant 3 | Newport | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KMKane Magnetics Intl/kane | Kane | PA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| KBKelman Bottles Llc/glenshaw | Glenshaw | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| KCKinsley Const Inc/w Filler Ensminger & Williams Quarries | York | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| KCKosmos Cement | Neville Island | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| KMKrosaki Magnesita Refractories | York | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| LSLafarge Scully Yard Concrete Plt | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LDLewis Drive in Clnrs/york | York | PA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
